== sanity test 101b: check stride-io mode read-ahead =========================================================================== 11:31:54 (1779204714)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

2.044509s, 4.10299MB/s
Read-ahead success for size 8192

2.388056s, 3.51274MB/s
Read-ahead success for size 16384

1.604309s, 5.2288MB/s
Read-ahead success for size 32768

2.262756s, 3.70725MB/s
Read-ahead success for size 65536

1.925535s, 4.35651MB/s
Read-ahead success for size 131072

1.922695s, 4.36294MB/s
Read-ahead success for size 262144

1.609622s, 5.21154MB/s
Read-ahead success for size 524288

1.252901s, 6.69535MB/s
Read-ahead success for size 1048576